Breaking those 5mg tablets is a pain for sure. When I was told to reduce from 12.5mg to 10mg in the one go, I felt it could be too much, so cut the 5mg tablet in half, then carefully in half again. Because they don't cut evenly at that size, or part of it crumbles away, I kept the two larger quarters (which I counted as 1.5mg) and discarded the two smaller quarters (counted as 1mg).

I reduced from 12.5 to 11.5mg first (2X 5mg tabs + 1X 1.5mg piece) without a problem, then reduced to 10mg straight after that. Both reductions were done without pain in 19 days, less time than the one scary reduction was due to take.

Get the pill cutter out and do it your way, the better safer way.